National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Overcast

42°F

6°C

Humidity 43%
Wind Speed NW 9 G 23 mph
Barometer 29.55 in (1000.8 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 11 Feb 3:56 pm EST
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: Mostly cloudy, with a low around 22. Northwest wind 6 to 9 mph, with gusts as high as 22 mph.

    Low: 22 °F

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 32. Northwest wind 7 to 10 mph, with gusts as high as 22 mph.

    High: 32 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 20. Northwest wind around 7 mph.

    Low: 20 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 33. Northwest wind 5 to 7 mph.

    High: 33 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 23. West wind around 6 mph.

    Low: 23 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 36. West wind 6 to 8 mph.

    High: 36 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 23. Northwest wind around 6 mph.

    Low: 23 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 34. North wind 3 to 7 mph.

    High: 34 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of snow after 5am. Mostly cloudy, with a low around 27. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 30%.

    Low: 27 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 22. Northwest wind 6 to 9 mph, with gusts as high as 22 mph.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 32. Northwest wind 7 to 10 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 20. Northwest wind around 7 mph.
Friday
Sunny, with a high near 33. Northwest wind 5 to 7 mph.
Friday Night
Partly cloudy, with a low around 23. West wind around 6 mph.
Saturday
Mostly sunny, with a high near 36. West wind 6 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 23. Northwest wind around 6 mph.
Sunday
Mostly sunny, with a high near 34. North wind 3 to 7 mph.
Sunday Night
A chance of snow after 5am. Mostly cloudy, with a low around 27. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 30%.
Washington's Birthday
A chance of snow before 9am, then a chance of rain. Mostly cloudy, with a high near 37. East wind 6 to 9 mph. Chance of precipitation is 30%.
Monday Night
A chance of rain. Mostly cloudy, with a low around 29. North wind around 7 mph. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 38. North wind 6 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 29. Light west wind.
Wednesday
A chance of rain. Mostly cloudy, with a high near 40. South wind 5 to 9 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
2:36 pm EST Feb 11, 2026
Forecast Valid:
4pm EST Feb 11, 2026-6pm EST Feb 18, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation